This company tries to keep travelers fed and stocked up on duty free goods. Alpha Group (formerly Alpha Airports Group) is a leading provider of in-flight catering and airport retail services. It serves more than 100 air carriers with traditional meals and catering services, as well as upscale menus inspired by international cuisine. The company also provides in-flight retail services along with a host of outsourcing services for logistics and security. On the ground, its Alpha Retail unit operates retail shops, restaurants, and lounges at more than 40 airports in about a dozen countries. Italian foodservices giant Autogrill acquired the company in 2007.